Wiluite
Vilyui River Basin, Mirninsky District, Sakha, Russia
3.9 x 2.4 x 2.2 cm. Old, rare wiluite from the Co-type Locality (both in the same area). Wiluite is a very rare vesuvianite species. The doubly terminated, sharp, blocky, highly lustrous, glassy, dark olive-green, tetragonal crystal is partially translucent. These crystals originally sold cheaply as vesuvianite, until they were determined to be a ...
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